A circ is an undirected graph having only vertices of even nonzero degree.

The woman had been pecking at on Underwood typewriter circa 1950.

这位妇女正敲击着一台一九五○年左右出厂的安德伍德牌打字机.

In summer , circa 1470 BC, Santorini exploded.

大约在公元前1470年夏天, 圣多里尼火山爆发了.

She was born circa 1060 and died in 1118.

她约生于一零六零年,卒于一一一八年.

An antique sterling silver and enamel cigarette case British hallmarks circa 1900.

古董纯银和搪瓷烟盒英国标志大约1900年.

And why did economics, circa 1975, divide into opposing camps over value of Keynes's views?

为什么在1975年左右,经济学界会在“如何认识凯恩斯思想 ” 这个问题上, 分化为两个完全对抗的阵营 呢 ?

Phot A Koguryo mural of hunting, circa 6 th Century AD.

照片:约西元六世纪,一幅描绘打猎的高句丽壁画.

Exceptional Italian 19 th century three dimensionally carved center table with green veined marble top, Circa 1850.

特殊的意大利19世纪的三大绿色三维雕刻大理石纹理的顶部, 约1850年的中心表.

If things fall right for them, they could be like Golden circa 2007.

如果事情对于他们来说向着好的方向发展, 那么他们就可能成为2007年的金州勇士.

Normandie with silver steam funnel clasp and jaunty anchor decoration ( French, circa 1935 ).

的形象,带有银制蒸汽烟囱纽扣和时髦的锚形装饰 ( 法国, 大约1935年 ).

The story tells of a runaway slave girl in Louisiana, circa 1850.

故事大约发生在1850年，讲的是路易斯安那州一个逃跑的年轻女奴。

Put yourself in the shoes of an AIG Financial Products executive circa February 2008.

把你自己想像成是2008年2月前后就职于AIG金融产品部门的一位高管.

In this picture taken circa 1935, military aircraft fly over the statue.

在这张摄于1935年的照片中, 美国军用飞机从自由女神像头顶掠过.

He sounds as though he is confusing Brussels with the Kremlin, circa 1980.

听起来,他好像把布鲁塞尔与1980年前后的克里姆林宫混为一谈了.

The year during with Voldemort began his rise to power is given as circa 1970.

伏地魔势力的兴起的年代大约在1970年.

Circadian cancer biology: Does the time of day we treat matter?

癌症的时间生物学: 治疗癌症的时间重要 吗 ?

Biologists found that they could throw the retinal rhythms out of sync with other circadian cycles.

生物学家发现它们可以独立于其它同步创造性时间周期的存在.

Conclusion Ventricular repolaization time had circadian rhythm ( long at night, short in day ).

结论:心室复极时间存在夜长昼短,午后稍回升的 节律.

Thus, a circadian rhythm is one that varies through a roughly 24-hour cycle.

昼夜节律大概没24小时构成一个循环.

Regular mealtimes, not just regular sleep times, help regulate our circadian rhythms.

不仅是有规律的睡眠时间, 有规律的饮食时间也对调节我们的生理节奏有帮助.

These physical and neural changes can lead to muted signals to the circadian system.

这些生理上和神经上的改变能引起沉默信号传递给生理节奏系统.